25430527 has 4 divisors (see below), whose sum is σ = 25462696. Its totient is φ = 25398360.

The previous prime is 25430519. The next prime is 25430543. The reversal of 25430527 is 72503452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25430527 - 2³ = 25430519 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25430495 and 25430504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25430557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14868 + ... + 16489.

It is an arithmetic number, because the mean of its divisors is an integer number (6365674).

Almost surely, 2^25430527 is an apocalyptic number.

25430527 is a deficient number, since it is larger than the sum of its proper divisors (32169).

25430527 is an equidigital number, since it uses as much as digits as its factorization.

25430527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32168.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25430527 is about 5042.8689255225. The cubic root of 25430527 is about 294.0707212594.

Adding to 25430527 its reverse (72503452), we get a palindrome (97933979).

The spelling of 25430527 in words is "twenty-five million, four hundred thirty thousand, five hundred twenty-seven".